66335652124 has 48 divisors (see below), whose sum is σ = 138505425408. Its totient is φ = 27180571968.

The previous prime is 66335652083. The next prime is 66335652137. The reversal of 66335652124 is 42125653366.

It is a super-2 number, since 2×66335652124² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1395354 + ... + 1442110.

It is an arithmetic number, because the mean of its divisors is an integer number (2885529696).

Almost surely, 2^66335652124 is an apocalyptic number.

It is an amenable number.

66335652124 is an abundant number, since it is smaller than the sum of its proper divisors (72169773284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66335652124 is a wasteful number, since it uses less digits than its factorization.

66335652124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48994 (or 48992 counting only the distinct ones).

The product of its digits is 777600, while the sum is 43.

The spelling of 66335652124 in words is "sixty-six billion, three hundred thirty-five million, six hundred fifty-two thousand, one hundred twenty-four".